The oxygen end of the molecule has a slightly negative charge while the hydrogen ends of the molecule have a slightly positive charge. the composition and polar covalent nature of water allow water molecules to be attracted to and form

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees